UNBALANCED LOAD SHARING WITH PARALLEL POWER SUPPLIES

摘要

Methods, computing systems and computer program products implement embodiments of the present invention that include determining a required electrical power level for one or more computer elements. Upon selecting a first value indicating a first electrical power level that is less than the required electrical power level, the first value is conveyed to a first power supply unit (PSU), so that that the first PSU delivers, to the one or more computer elements, the first electrical power level. A second value is selected that indicates a second electrical power level that is different from the first value, the second value indicating a difference between the required electrical power level and the first electrical power level. The second value is conveyed to a second PSU, so that that upon receiving the second value, the second PSU delivers, to the one or more computer elements, the second electrical power level.

主权项

1. A method, comprising:
determining, by a power controller, a required electrical power level for one or more computer elements; selecting a first value indicating a first electrical power level less than the required electrical power level; conveying, to a first power supply unit, the first value so that that the first power supply unit delivers, to the one or more computer elements, the first electrical power level indicated by the first value; selecting a second value indicating a second electrical power level different than the first electrical power level, the second value comprising a difference between the required electrical power level and the first electrical power level; and conveying the second value to a second power supply unit so that that upon receiving the second value, the second power supply unit delivers, to the one or more computer elements, the second electrical power level indicated by the second value.